CN212071754U

CN212071754U - Hollow hydraulic torque wrench

Info

Publication number: CN212071754U
Application number: CN202020747095.4U
Authority: CN
Inventors: 李华侨
Original assignee: Nanjing Meiouhua Electromechanical Equipment Co ltd
Current assignee: Nanjing Meiouhua Electromechanical Equipment Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-12-04
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a well hollow hydraulic torque wrench, including wrench body, arbitrary one side has seted up the cavity in wrench body, the cavity is close to the bottom position and is used to go out to rotate and be connected with the ratchet, the hexagonal hole that runs through the setting is seted up on the ratchet surface, the cavity lateral wall rotates and is connected with the power piece, the power piece is the toper setting, the power piece lateral wall rotates and is connected with two and stirs the pawl, two stir the teeth of a cogwheel sliding connection of pawl and ratchet, wrench body is located cavity lateral wall position and inlays fixedly connected with hydro-cylinder, be provided with the piston in the hydro-cylinder, the piston is close to cavity one side central point and puts fixedly connected with connecting rod, the connecting rod is kept away from piston one side and runs through the hydro-cylinder. The utility model discloses make hexagon nut screw or not hard up nut for the nut is comparatively laborsaving when screwing not hard up, has reduced intensity of labour greatly.

Description

Hollow hydraulic torque wrench

Technical Field

The utility model relates to an equipment assembling tool technical field especially relates to a cavity formula hydraulic torque wrench.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other screw threads to tightly hold open or trepanning fasteners of the bolts or nuts by utilizing the lever principle. The wrench is usually made of structural steel made of carbon or alloy materials, an opening or a trepanning for clamping a bolt or a nut is usually arranged at one end or two ends of a handle part of the wrench, when the wrench is used, external force is applied to the handle part along the rotation direction of a thread, the bolt or the nut can be screwed, the manual wrench is also called as a common wrench and is mainly applied to common life and work, the wrench is simple in use and mainly comprises a single-head solid wrench, a double-head solid wrench, an adjustable wrench, a double-end wrench, a box wrench, a multi-purpose wrench, a knocking wrench, a socket screw driver, a torque wrench, a cross wrench, a ratchet wrench, a hook-shaped wrench, an inner hexagon wrench, an inner square wrench, a manual clutch type torque wrench, a pipe wrench, a T-shaped wrench, an L-shaped wrench, a three-fork wrench, a crescent wrench, an oil drum wrench, a tire wrench, a spark plug wrench, a filter wrench, a combination wrench, other wrenches and the like. The torque wrench is divided into a sound wrench, a pointer wrench and a digital display wrench.

The wrench is generally used for assembling and overhauling equipment in the prior art, is simple and convenient to use, but is labor-consuming and high in labor intensity when a nut of large-scale machinery is screwed or disassembled in the using process of a common wrench in the prior art, and can not be disassembled.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hollow hydraulic torque wrench.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a cavity formula hydraulic torque wrench, includes wrench body, arbitrary one side has seted up the cavity in wrench body, the cavity is close to the bottom position and is used out to rotate and be connected with the ratchet, the hexagonal hole that runs through the setting is seted up on the ratchet surface, the cavity lateral wall rotates and is connected with the power piece, the power piece is the toper setting, the power piece lateral wall rotates and is connected with two and stirs the pawl, two stir the teeth of a cogwheel sliding connection of pawl and ratchet, wrench body is located cavity lateral wall position and inlays fixedly connected with hydro-cylinder, be provided with the piston in the hydro-cylinder, the piston is close to cavity one side central point and puts fixedly connected with connecting rod, the connecting rod is kept away from piston one side and runs through the.

As a further description of the above technical solution:

the cavity is located on one side, away from the oil cylinder, of the ratchet wheel and is rotatably connected with a non-return pawl through a fixing block, and the non-return pawl is connected with the ratchet wheel in a clockwise sliding mode.

As a further description of the above technical solution:

the piston is connected with the inner wall of the oil cylinder in a sliding mode.

As a further description of the above technical solution:

the wrench body is kept away from cavity one side top position and is rotated and be connected with oil pipe rotary joint, oil pipe rotary joint is double-barrelled setting, be provided with the oil filler point between oil pipe rotary joint and the hydro-cylinder one side of keeping away from the cavity.

As a further description of the above technical solution:

the wrench main body, the piston, the connecting rod, the non-return pawl and the toggle pawl are all made of cast iron materials.

As a further description of the above technical solution:

and a sealing gasket is arranged at the position where the connecting rod penetrates through the side wall of the oil cylinder.

As a further description of the above technical solution:

the hexagonal hole is consistent with the hexagonal nut in shape and size.

The utility model discloses following beneficial effect has:

the utility model discloses a set up hexagonal hole, hydro-cylinder, be connected with oil pipe through two interfaces to oil pipe rotary joint for through oil pipe rotary joint toward the interior oiling of hydro-cylinder or oil pumping, make piston and connecting rod reciprocating motion, make the power block swing, make stir the pawl and drive ratchet, make the hexagonal hole rotate, make the hexagonal hole drive hexagon nut and rotate, screw or not hard up the nut.

The utility model discloses make hexagon nut screw or not hard up nut for the nut is comparatively laborsaving when screwing not hard up, has reduced intensity of labour greatly.

Drawings

Fig. 1 is a front view of a hollow hydraulic torque wrench according to the present invention;

fig. 2 is a cross-sectional view of a hollow hydraulic torque wrench according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Illustration of the drawings:

1. a wrench body; 2. a ratchet wheel; 3. a hexagonal hole; 4. an oil pipe rotary joint; 5. an oil filler hole; 6. a piston; 7. an oil cylinder; 8. a connecting rod; 9. a power block; 10. poking the pawl; 11. a cavity; 12. a non-return pawl.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a hollow hydraulic torque wrench comprises a wrench body 1, a cavity 11 is arranged on any one side in the wrench body 1, a ratchet 2, a poking pawl 10 and a non-return pawl 12 can be placed through the cavity 11, the cavity 11 is connected with the ratchet 2 through being rotated out near the bottom position, a hexagonal hole 3 is arranged on the surface of the ratchet 2 in a penetrating mode, a hexagonal nut can be inserted through the hexagonal hole 3, a power block 9 is connected with the side wall of the cavity 11 in a rotating mode, the power block 9 is arranged in a conical mode, two poking pawls 10 are connected with the side wall of the power block 9 in a rotating mode, the two poking pawls 10 are connected with the teeth of the ratchet 2 in a sliding mode, the power block 9 swings through a connecting rod 8, the poking pawl 10 enables the ratchet 2 and the hexagonal hole 3 to rotate, the hexagonal nut rotates, an oil cylinder 7 is fixedly connected with the wrench body, the piston 6 is close to cavity 11 one side central point and puts fixedly connected with connecting rod 8, and connecting rod 8 is kept away from piston 6 one side and is run through the lateral wall of hydro-cylinder 7 and be connected with the lateral wall of power block 9 through the rotating pin rotation, realizes piston 6 reciprocating motion through oiling or pumping in toward oil pipe rotary joint 4 for connecting rod 8 reciprocating motion makes power block 9 swing.

The cavity 11 is located ratchet 2 and keeps away from hydro-cylinder 7 one side and is connected with non return pawl 12 through the fixed block rotation, and non return pawl 12 and ratchet 2 are clockwise sliding connection, and ratchet 2 anticlockwise rotates when the hex nut kick-backs for non return pawl 12 supports ratchet 2, prevents ratchet 2 and reverses. The piston 6 is connected with the inner wall of the oil cylinder 7 in a sliding way. The wrench body 1 is far away from cavity 11 one side top position and rotates and be connected with oil pipe rotary joint 4, and oil pipe rotary joint 4 is double-barrelled setting, and oil pipe rotary joint 4 is far away from cavity 7 and is provided with oil filler point 5 between one side, and oil pipe rotary joint 4 through double-barrelled setting is towards the interior notes oil of hydro-cylinder 7 or is pumped oil. The wrench main body 1, the piston 6, the connecting rod 8, the non-return pawl 12 and the toggle pawl 10 are all made of cast iron materials which are not easy to deform. The position that connecting rod 8 and hydro-cylinder 7 lateral wall run through is provided with sealed the pad, avoids hydraulic oil to spill from the through hole position. The hexagonal hole 3 is consistent with the hexagonal nut in shape and size, so that the hexagonal hole 3 can drive the hexagonal nut to rotate when rotating.

The working principle is as follows: through being connected two interfaces and oil pipe to oil pipe rotary joint 4 for inject oil or oil pumping in hydro-cylinder 7 through oil pipe rotary joint 4, make piston 6 and connecting rod 8 reciprocating motion, make the swing of power piece 9, make stir pawl 10 and drive ratchet 2 and rotate, make hexagonal hole 3 drive hexagon nut and rotate, screw or not hard up the nut.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a cavity formula hydraulic torque spanner, includes spanner main part (1), its characterized in that: a cavity (11) is arranged at any side in the wrench body (1), a ratchet wheel (2) is rotatably connected to the position, close to the bottom, of the cavity (11), the surface of the ratchet wheel (2) is provided with a hexagonal hole (3) which is arranged in a penetrating way, the side wall of the cavity (11) is rotationally connected with a power block (9), the power block (9) is arranged in a conical shape, the side wall of the power block (9) is rotatably connected with two toggle pawls (10), the two toggle pawls (10) are connected with the gear teeth of the ratchet (2) in a sliding manner, the wrench body (1) is embedded and fixedly connected with an oil cylinder (7) at the side wall of the cavity (11), a piston (6) is arranged in the oil cylinder (7), a connecting rod (8) is fixedly connected at the central position of one side of the piston (6) close to the cavity (11), one side, far away from the piston (6), of the connecting rod (8) penetrates through the side wall of the oil cylinder (7) and is rotatably connected with the side wall of the power block (9) through a rotating pin.

2. The hollow hydraulic torque wrench of claim 1, wherein: the cavity (11) is located ratchet wheel (2) and is kept away from one side of hydro-cylinder (7) and is connected with non return pawl (12) through the fixed block rotation, non return pawl (12) and ratchet wheel (2) clockwise sliding connection.

3. The hollow hydraulic torque wrench of claim 1, wherein: and the piston (6) is in sliding connection with the inner wall of the oil cylinder (7).

4. The hollow hydraulic torque wrench of claim 1, wherein: the wrench body (1) is far away from one side of the cavity (11), the top position is rotationally connected with an oil pipe rotary joint (4), the oil pipe rotary joint (4) is a double-pipe arrangement, and an oil filling hole (5) is formed between one side of the cavity (11) and the oil cylinder (7) in a mode that the oil pipe rotary joint (4) and the oil cylinder (7) are far away from the cavity.

5. The hollow hydraulic torque wrench of claim 1, wherein: the wrench main body (1), the piston (6), the connecting rod (8), the non-return pawl (12) and the toggle pawl (10) are all made of cast iron materials.

6. The hollow hydraulic torque wrench of claim 1, wherein: and a sealing gasket is arranged at the position where the connecting rod (8) and the side wall of the oil cylinder (7) penetrate through.

7. The hollow hydraulic torque wrench of claim 1, wherein: the hexagonal hole (3) is consistent with the hexagonal nut in shape and size.